Though I'd say thanks again and let you all know what I found. After pulling the tank I discovered the pickup tubing was perhaps 1/8" to long and the clunk wasn't free to fall when the plane rolled over. Shortened it up about 3/16" and today I finally got to fly it the wind was only blowing about 20 mph. The plane rolled perfectly. The rattle I'm learning to live with. Again thanks Kev.